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An Electron Spin Resonance Study of Cubic Fe 3+ in Alkali Chloride Crystals
Author(s) -
Nistor S. V.,
VelterStefănescu M.
Publication year - 1986
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221380134
Subject(s) - electron paramagnetic resonance , hyperfine structure , alkali metal , crystallography , center (category theory) , chloride , interstitial defect , chemistry , tetrahedron , electron , inorganic chemistry , analytical chemistry (journal) , materials science , nuclear magnetic resonance , atomic physics , physics , metallurgy , organic chemistry , chromatography , optoelectronics , doping , quantum mechanics
Cubic Fe 3+ is formed by X‐irradiating LiCl:Fe crystals grown in a reactive atmosphere. The spin Hamiltonian parameters are consistent with the Fe cub 3+ center, earlier observed in AgCl and NaCl, consisting of an interstitial Fe 3+ forming a tetrahedral (FeCl 4 ) − complex, the four nearest‐neighbour cation sites being vacant. The superhyperfine structure analysis in samples containing 57 Fe enriched iron gives the hyperfine splitting 57 A = (9.4 ± 0.5) × 10 −4 cm −1 . No such center is found in KCl:Fe and RbCl:Fe crystals.